Dias 154

0.08 UTI

0.0

C_N

0.03

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 15

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

ℹ️

Dias 154 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, well below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very distant Low extinction Near-solar metallicity Old

Data

🔍 Search references for Dias 154 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	97.411	-12.888	0.145	-0.033	0.86	85.34
Dias et al.	2026	97.437	-12.872	0.15	-0.029	0.808	101.597

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	7.38	0.59	–	4074	-0.164	–	–	–
Dias et al.	2026	7.38	0.59	–	4074	-0.164	–	–	–

Visualization

ℹ️